According to the Mayo Clinic, vitamin B12 is a necessary vitamin found in fish, shellfish, meat and dairy products. It is essential for nerve function, red blood cell production and the formation of DNA. Because vitamin B12 is found in meats, vegetarians may have a vitamin B12 deficiency. In addition, those who have had small intestine removal or pernicious anemia (a disease of impaired vitamin B12 absorption) can also have vitamin B12 deficiency. In order to maintain healthy nerve, blood and genetic function, vitamin B12 injections may be necessary. There are side effects of these injections that you should be aware of.
Skin Effects
The Mayo Clinic reports that itching, rash, bumps and redness of your skin are common side effects of B12 injections. These symptoms can occur for up to four months after vitamin B12 supplementation. Also, because this is an injection, you may experience pain or swelling at the site of injection. If you are experiencing skin side effects, see your doctor. She may be able to prescribe a medication that can control these effects.
Blood Clots
According to the National Institutes of Health, blood clots are a side effect of vitamin B12 supplementation. Blood clots are a dangerous side effect because they can be life threatening. They can cause leg cramps, difficulty breathing or a stroke. If you have a history of blood clots, smoke or use oral contraceptives, you can be at an increased risk. Therefore, always make your doctor aware of medications that you are taking and your prior conditions before taking vitamin B12 injections.
Contraindications
A contraindication to vitamin B12 supplementation applies to those with Leber's disease, according to the Mayo Clinic. A 2005 article in the journal Brain states that Leber's disease is a disease of the nerves that are responsible for vision. Vitamin B12 can worsen this condition. In addition, if you have an allergy to vitamin B12, you should not get injections.
Member Comments